What is CVE-2017-3870?

CVE-2017-3870 is a medium-severity vulnerability in Cisco Web_security_appliance, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 5.8/10. Published 2017-03-17.

How severe is CVE-2017-3870?

Medium severity. CVSS v3 base score is 5.8 out of 10.

Buffer overflow in Cisco Web_security_appliance

CVE-2017-3870

A vulnerability in the URL filtering feature of Cisco AsyncOS Software for Cisco Web Security Appliance (WSA) could allow an unauthenticated, remote attacker to bypass a configured URL filter rule. Affected Products: This vulnerability aff…

Vulnerability class: Buffer Overflow

EPSS: 0.003 (48.9th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.8 (Medium). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N.

Affected products

Cisco Web_security_appliance — versions 8.5.3-069, 9.1.1-074, 9.1.2-010
N/a Cisco Web Security Appliance — versions Cisco Web Security Appliance

Weakness classification (CWE)

CWE-119 — Improper Restriction of Operations within the Bounds of a Memory Buffer

References

psirt@cisco.com (x_refsource_CONFIRM, Vendor Advisory)
psirt@cisco.com (VDB Entry, Third Party Advisory, vdb-entry, x_refsource_BID)
psirt@cisco.com (vdb-entry, x_refsource_SECTRACK)

Frequently asked questions

What is CVE-2017-3870?: CVE-2017-3870 is a medium-severity vulnerability in Cisco Web_security_appliance, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 5.8/10. Published 2017-03-17.
How severe is CVE-2017-3870?: Medium severity. CVSS v3 base score is 5.8 out of 10.